The SpectroCalc app is designed for conversion of units that describe electromagnetic waves.
btb Software Studio
Android (requires 2.3.3 and up)
WHAT IT DOES:
The SpectroCalc app is designed for conversion of units that describe electromagnetic waves. According to the company, the user interface features three columns. The left and center columns are simple converters of wavelength, wavenumber, energy, and frequency. The right column calculates difference between values in the left and center columns, or can be used to calculate either the left or center column if one of these is left blank.